US2623241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinneret and its method of production
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1950-09-08
•
Granted: 1952-12-30
•
Expires: 1970-09-08
Abstract
No abstract record available.
Inventors
- 👤 Mackay John D Mcc
- 👤 Arthur W S Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:11
CPC Classifications
D; D01; D01D; D01D4/00; D01D4/02; D01D4/022; B; B29; B29C; B29C33/00; B29C33/0033; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/22; B29C70/28; B29C70/30; B29C70/34; B29C70/347; B29C70/54; B29C70/545
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB161526A
Cited
US1654936A
Cited
US2266349A
Cited
US2360479A
Cited
US2510598A
Cited
US2506244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |